What did Christopher Columbus find in America?

He didn't "find America". In fact, he had no idea that it existed and how big the world really was. His maps were wrong, so he went west to go East. He never knew about North America and didn't realize how wrong he was in his calculations. The rest of Spain had no idea about Columbus and his fame came about years after his death. In fact, in his life he was considered a failure and died broke. His son sued the crown to fulfill the contract he made with him.